LEADER 01473nam 2200445I 450 001 9910712821403321 005 20200207105805.0 035 $a(CKB)5470000002497972 035 $a(OCoLC)1139709173 035 $a(EXLCZ)995470000002497972 100 $a20200207j202001 ua 0 101 0 $aeng 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aNASA ETR Quiet Zone Probe Study /$fLarry A. Ticatch [and three others] 210 1$a[Washington, D.C.] :$c[National Aeronautics and Space Administration],$dJanuary 2020. 215 $a1 online resource (119 pages, 1 unnumbered page) $ccolor illustrations 225 1 $aNASA/TM ;$v2020-220434 300 $a"January 2020." 517 3 $aNational Aeronautics and Space Administration Experimental Test Range Quiet Zone Probe Study 606 $aCollimation$2nasat 606 $aFar fields$2nasat 606 $aAsymmetry$2nasat 606 $aAcoustic properties$2nasat 606 $aPlane waves$2nasat 615 7$aCollimation. 615 7$aFar fields. 615 7$aAsymmetry. 615 7$aAcoustic properties. 615 7$aPlane waves. 700 $aTicatch$b Larry A.$01392499 712 02$aUnited States.$bNational Aeronautics and Space Administration, 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910712821403321 996 $aNASA ETR Quiet Zone Probe Study$93447293 997 $aUNINA